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公开(公告)号：US12167007B2
公开(公告)日：2024-12-10
申请号：US17675444
申请日：2022-02-18
Inventor： Jing Ya Li , Chong Soon Lim , Han Boon Teo , Che-Wei Kuo , Hai Wei Sun , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: H04N19/423 , H04N19/172 , H04N19/174 , H04N19/70
Abstract: An encoder includes circuitry and memory coupled to the circuitry. The circuitry encodes second information indicating whether first information is present in a bitstream, the first information being regarding a subpicture which is a rectangular region in a picture, the picture including slices, and when the second information indicates that the first information is present in the bitstream, each of the slices is a rectangular slice and has a subpicture index indicating a subpicture to which the slice belongs.
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82.发明公开公开(公告)号：US20240364916A1
公开(公告)日：2024-10-31
申请号：US18768349
申请日：2024-07-10
Inventor： Kiyofumi ABE , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/513 , H04N19/132 , H04N19/176 , H04N19/563
CPC classification number: H04N19/513 , H04N19/132 , H04N19/176 , H04N19/563
Abstract: The present disclosure provides systems and methods for video coding. The systems include, for example, an image encoder comprising: circuitry; and a memory coupled to the circuitry, wherein the circuitry, in operation, performs the following: predicting a first block of prediction samples for a current block of a picture, wherein predicting the first block of prediction samples includes at least a prediction process with a motion vector from a different picture; padding the first block of prediction samples to form a second block of prediction samples, wherein the second block is larger than the first block; calculating at least a gradient using the second block of prediction samples; and encoding the current block using at least the calculated gradient.
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公开(公告)号：US12126795B2
公开(公告)日：2024-10-22
申请号：US17943971
申请日：2022-09-13
Inventor： Ru Ling Liao , Chong Soon Lim , Hai Wei Sun , Han Boon Teo , Jing Ya Li , Sughosh Pavan Shashidhar , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46
CPC classification number: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46
Abstract: An encoder includes: circuitry; and memory coupled to the circuitry. The circuitry, in operation, stores a first parameter into a bitstream, the first parameter indicating, as a prediction mode, one of (i) a multiple prediction mode in which a prediction image is generated by overlapping an inter prediction image of a current block and an intra prediction image of the current block and (ii) one of a plurality of prediction modes including a non-rectangular mode in which a prediction image is generated for each non-rectangular partition in the current block, and encodes the current block according to the prediction mode.
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公开(公告)号：US12088791B2
公开(公告)日：2024-09-10
申请号：US17946784
申请日：2022-09-16
Inventor： Ru Ling Liao , Chong Soon Lim , Hai Wei Sun , Han Boon Teo , Jing Ya Li , Sughosh Pavan Shashidhar , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46
CPC classification number: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46
Abstract: An encoder includes: circuitry; and memory coupled to the circuitry. The circuitry, in operation, stores a first parameter into a bitstream, the first parameter indicating, as a prediction mode, one of (i) a multiple prediction mode in which a prediction image is generated by overlapping an inter prediction image of a current block and an intra prediction image of the current block and (ii) one of a plurality of prediction modes including a non-rectangular mode in which a prediction image is generated for each non-rectangular partition in the current block, and encodes the current block according to the prediction mode.
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公开(公告)号：US20240297986A1
公开(公告)日：2024-09-05
申请号：US18657222
申请日：2024-05-07
Inventor： Ru Ling LIAO , Chong Soon Lim , Jing Ya Li , Han Boon Teo , Hai Wei Sun , Che Wei Kuo , Yusuke Kato , Tadamasa Toma , Kiyofumi Abe , Takahiro Nishi
IPC: H04N19/107 , H04N19/176
CPC classification number: H04N19/107 , H04N19/176
Abstract: An image encoder includes: circuitry; and a memory coupled to the circuitry. The circuitry, in operation: calculates first values of a current block using intra prediction, the intra prediction being limited to planar mode, the planar mode using multiple reference pixels for each pixel location of the current block; calculates second values of the current block using inter prediction; calculates third values of the current block by weighting the first values and the second values; and encodes the current block using the third values, and in the calculating of the third values, a first weight is applied to the first values and a second weight is applied to the second values, the second weight being different from the first weight.
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Patent Agency Ranking
86.发明授权公开(公告)号：US12081748B2
公开(公告)日：2024-09-03
申请号：US17868199
申请日：2022-07-19
Inventor： Han Boon Teo , Hai Wei Sun , Chong Soon Lim , Jing Ya Li , Chu Tong Wang , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma
IPC: H04N19/117 , H04N19/105 , H04N19/46 , H04N19/80
CPC classification number: H04N19/117 , H04N19/105 , H04N19/46 , H04N19/80
Abstract: An encoder includes circuitry and memory coupled to the circuitry. The circuitry: executes a second process of applying a second filter to the first image to generate a second image, not holding the second image as a reference image, holding the first image as a reference image, and displaying the second image; writes coefficients of each of one or more filter candidates that are candidates for the second filter into a bitstream, wherein the coefficients are included in a first storage location when written into the bitstream; and writes a parameter that specifies, for each image, one of the one or more filter candidates as the second filter into the bitstream, wherein the parameter is included in a second storage location when written into the bitstream, and the second storage location is different from the first storage location.
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87.发明授权公开(公告)号：US12063383B2
公开(公告)日：2024-08-13
申请号：US18103567
申请日：2023-01-31
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/513 , H04N19/132 , H04N19/176 , H04N19/563
CPC classification number: H04N19/513 , H04N19/132 , H04N19/176 , H04N19/563
Abstract: The present disclosure provides systems and methods for video coding. The systems include, for example, an image encoder comprising: circuitry; and a memory coupled to the circuitry, wherein the circuitry, in operation, performs the following: predicting a first block of prediction samples for a current block of a picture, wherein predicting the first block of prediction samples includes at least a prediction process with a motion vector from a different picture; padding the first block of prediction samples to form a second block of prediction samples, wherein the second block is larger than the first block; calculating at least a gradient using the second block of prediction samples; and encoding the current block using at least the calculated gradient.
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公开(公告)号：US12034940B2
公开(公告)日：2024-07-09
申请号：US17539348
申请日：2021-12-01
Inventor： Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Ryuichi Kanoh , Chong Soon Lim , Ru Ling Liao , Hai Wei Sun , Sughosh Pavan Shashidhar , Han Boon Teo , Jing Ya Li
IPC: H04N19/176 , H04N19/105 , H04N19/52 , H04N19/70
CPC classification number: H04N19/176 , H04N19/105 , H04N19/52 , H04N19/70
Abstract: An encoder, includes: circuitry; and memory. Using the memory, the circuitry: in inter prediction for a current block, determines a base motion vector, and writes, in an encoded signal, a delta motion vector representing (i) one direction among a plurality of directions including a diagonal direction and (ii) a distance from the base motion vector; and encodes the current block using the delta motion vector and the base motion vector as a motion vector of the current block.
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公开(公告)号：US12034938B2
公开(公告)日：2024-07-09
申请号：US18171242
申请日：2023-02-17
Inventor： Jing Ya Li , Chong Soon Lim , Han Boon Teo , Hai Wei Sun , Che Wei Kuo , Kiyofumi Abe , Takahiro Nishi , Tadamasa Toma , Yusuke Kato
IPC: G06V10/00 , H04N19/126 , H04N19/156 , H04N19/159 , H04N19/18 , H04N19/52 , H04N19/61
CPC classification number: H04N19/159 , H04N19/126 , H04N19/156 , H04N19/18 , H04N19/52 , H04N19/61
Abstract: An image encoder is provided including circuitry and a memory coupled to the circuitry. The circuitry, in operation, responds to a size of a block satisfying a size condition by generating a prediction image using a prediction mode selected from a plurality of prediction modes. The plurality of prediction modes include a first prediction mode in which a prediction process uses a motion vector and a reference block in a same picture as the block. The circuitry encodes the block using the prediction image.
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公开(公告)号：US12028554B2
公开(公告)日：2024-07-02
申请号：US18052108
申请日：2022-11-02
Inventor： Chu Tong Wang , Chong Soon Lim , Han Boon Teo , Hai Wei Sun , Jing Ya Li , Che-Wei Kuo , Tadamasa Toma , Takahiro Nishi , Kiyofumi Abe , Yusuke Kato
IPC: H04N19/82 , H04N19/117 , H04N19/132 , H04N19/167 , H04N19/17 , H04N19/186
CPC classification number: H04N19/82 , H04N19/117 , H04N19/132 , H04N19/167 , H04N19/17 , H04N19/186
Abstract: An encoder includes circuitry and memory coupled to the circuitry. The circuitry, in response to a first reconstructed image sample being located outside a virtual boundary, duplicates a reconstructed sample located inside and adjacent to the virtual boundary to generate the first reconstructed image sample. The circuitry generates a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to the first reconstructed image sample of a luma component. The circuitry generates a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component. The circuitry generates a third coefficient value by adding the first coefficient value to the second coefficient value, and encodes a third reconstructed image sample of the chroma component using the third coefficient value.
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